(19)

(11)

EP 3 990 716 A1

(12)

(43) Date of publication: 04.05.2022 Bulletin 2022/18 (21) Application number: 20734754.3 (22) Date of filing: 30.06.2020

(51) International Patent Classification (IPC):  E04D 13/16(2006.01) C09D 1/04(2006.01) C04B 103/00(2006.01) C04B 28/26(2006.01) C04B 111/00(2006.01) C08K 5/053(2006.01) (52) Cooperative Patent Classification (CPC): E04D 13/1662; C04B 28/26; C04B 2111/00586; C04B 2111/00612; C04B 2111/00482; C04B 2103/0007; C04B 2103/0008; C09D 1/04; C08K 5/053   C-Sets: C04B 28/26, C04B 14/22, C04B 20/008, C04B 22/16, C04B 24/10, C04B 24/123; C04B 28/26, C04B 14/24, C04B 20/008, C04B 22/16, C04B 24/10, C04B 2103/40; (86) International application number: PCT/EP2020/068343 (87) International publication number: WO 2021/001342 (07.01.2021 Gazette 2021/01)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 30.06.2019 EP 19183513 (71) Applicant: Pittsburgh Corning Europe NV 3980 Tessenderlo (BE)	(72) Inventors: VERLAAK, Stijn 3500 Hasselt (BE) STREDA, Michal 431 51 Klá terec nad Oh í (CZ) (74) Representative: Haseltine Lake Kempner LLP  Redcliff Quay 120 Redcliff Street Bristol BS1 6HU Bristol BS1 6HU (GB)